Alayea

Context: Prior to patch 7.3, there was only the five emissaries for the 7.0 factions. (I'm not counting the occasional Kirin Tor due to its rep rewards.) With the addition of Legionfall, Argussian Reach, and Army of the Light in 7.3, we're now up to 8. This means it can take over a week now before the emissary you want makes its appearance.

What prompted this realization was while I was pondering how long it's been since the emissary for Valarjar last appeared. And Valarjar is the last pre-7.3 faction that I don't have the paragon reward from (Valarjar Stormwing mount).

It's been long enough that I think Valarjar should pop up within the next couple of days (if not tomorrow), but I guess I

The current Blood-Soaked Invitation is being deprecated and renamed to Bloodied Scroll in Patch 7.1.5. And even if you choose to use it prior to the patch, everyone is having their Brawler's Guild membership reset. (source)

Thought I'd share this tip after I noticed someone on my server bidding on it.

I totally did and lost out on the bonus rep I could have gotten while doing my world quests for the past couple days. Don't be me.

For your reference: Unburdened (A) / Grim Visage (H)